How to add outline to text strip in VSE
There isn't a direct way of doing this. An indirect way is to add a multiplied glow effect under the text with a black color.

Create a text strip, then &quot;Add&quot; -&gt; &quot;Effect Strip&quot; -&gt; &quot;Glow&quot; and move it under the strip.

In the Glow's &quot;Strip&quot; tab set &quot;Threshold&quot; to minimum, &quot;Clamp&quot; to maximum, &quot;Blur distance&quot; to your desired size, &quot;Quality&quot; to 1 (personal preference), &quot;Blend&quot; to alpha over, and &quot;multiply&quot; to maximum.

In the Glow's &quot;Modifiers&quot; tab &quot;add strip modifier&quot; -&gt; &quot;color balance&quot;

In the color balance set &quot;gain&quot; to minimum